What should I change (i.e. passwords, etc.) after my iPhone 5 has been hacked?
I know it's been hacked. I've seen it with my own eyes. Days ago while my phone was charging my sister was just about to grab my phone to call hers and saw that it was unlocking itself and trying to do my password. I stopped it before it could and closed it off because it was being weird. It had been doing this before, it stopped for a few days and after that incident I assumed it was in fact hacked. Even if it isn't exactly hacking I just want to be safe. I'm not using the phone whatsoever. I might start over and get a new number and provider just so this doesn't happen again. I went to the Apple store and they said they couldn't do anything about it.
So I think the guy/gal has been looking on the phone for a while. I changed my email, Facebook, and Instagram passwords. I have an Apple ID. I'm going to change it soon. But I wanted to know what else I should change that I'm missing. Can they hack into my email just by knowing the email and not the password?( I know its silly but I don't know much about the subject) Can they hack into my family's phones because they know my Apple ID password? Can they download my contacts?
Thanks in advance. No trolls please.